docs: def encode_from_bin_keypath(input_bin):
      """
      Encodes a sequence of 0s and 1s into tightly packed bytes
      Used in encoding key path of a KV-NODE
      """
      padded_bin = bytes((4 - len(input_bin)) % 4) + input_bin
      prefix = TWO_BITS[len(input_bin) % 4]
      if len(padded_bin) % 8 == 4:
          return decode_from_bin(PREFIX_00 + prefix + padded_bin)
      else:
          return decode_from_bin(PREFIX_100000 + prefix + padded_bin)